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Virtual instrument software architecture (VISA) is a widely used application programming interface (API) in the test and measurement (T&M) industry for communicating with instruments from a computer.
8 Layer 5 (Session Layer) 9 Layer 6 (Presentation Layer) 10 Layer 7 (Application Layer) 11 Other protocols. 12 Protocol description languages. 13 See also. 14 References.
For example, in modern systems, this work is dominated by the round-trip through the IO bus to the network interface. The standard has been revised since the initial release to make it more suited for modern high performance, massively parallel computers. [ 3 ]
The award is presented annually for outstanding contributions in electrical measurements, and is sponsored by Keithley Instruments and the IEEE Instrumentation and Measurement Society. [ 1 ] [ 2 ] The award is not to be confused with the similarly-named Joseph F. Keithley Award For Advances in Measurement Science of the American Physical ...
Keithley Instruments is a measurement and instrument company headquartered in Solon, Ohio, that develops, manufactures, markets, and sells data acquisition products, as well as complete systems for high-volume production and assembly testing.
The Joseph F. Keithley Award For Advances in Measurement Science is an award of the American Physical Society (APS) that was first awarded in 1998. It is named in honor of Joseph F. Keithley, the founder of Keithley Instruments .
The physical hardware communications link (physical layer) is not defined by SCPI. [5] While it was originally created for the IEEE-488.1 (GPIB) bus, [5] SCPI can also be used with RS-232, RS-422, RS-485, USB, Ethernet, VXIbus, HiSLIP, etc. [5] SCPI commands are ASCII textual strings, [5] which are sent to the instrument over the physical layer ...
Profinet implements the interfacing to peripherals. [1] [2] It defines the communication with field connected peripheral devices.Its basis is a cascading real-time concept. Profinet defines the entire data exchange between controllers (called "IO-Controllers") and the devices (called "IO-Devices"), as well as parameter setting and diagnosi